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This group is for LSU members who use Topcon Instruments in the field. This group is for discussions and tutorials related to Topcon user. LSU is not directly affiliated with Topcon and all logos and imagery are copyright of respective owners.

All Surveyor Forum Discussions (43)

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Topcon FC-4 Manual Request

Would anyone happen to have a user manual for an older (c.1990) Topcon FC-4 controller/data collector? I recently picked one up and need to know what DRAM card to purchase for it and any pertinent specifics for interfacing it with my GTS-3b. Thanks s

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Topcon DS-105AC & Survey Pro?

Has anyone had any luck connecting Survey Pro to a DS-105? I have been told the 100 series' isn't compatible, but the 200 series is. We have used TDS and Survey Pro for 15 years and really like it. Recently we acquired a DS-105AC that came with a FC-

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Topcon OS Series 103 Manual

Hi All, am new to this topcon os 103 series. Can someone help me with the manual?Also I got a problem with setup coz every time when I try to center the bubble in electric level, the bubble in the circular level is out of range..Am not really sure if

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DWG file to 3DMC

Hello everybody!

first of all, I want to thank you for giving me the opportunity to write here my questions and doubts about Topcon devices.

I will try to explain what is my problem here below...

I have a DWG file which contains just a 3d polyline, but

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Topcon GTS 250 manual ???


I am in need of a user manual for the Topcon GTS 250 urgently 

if Any one out there can assist me  please email me at

I need it for training purposes 


Rolita from  the Southern tip  of Africa (Cape Town, South Africa)

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